Long story short, I have a longitudinal survey for participants and I'd like them to use an app interface to take them, as opposed to a website url-based interface (such as that offered by Qualtrics or Redcap).
There are easy online app builders for people who don't code (e.g. Appery.io), but I want to see if the research community (you!) has vetted any such app use. Or, even better, built your own from scratch.
Qualtrics and RedCap have apps but they are for administrators, not participants. I need an app for participants to easily access their surveys over weeks.
Thank you for your knowledge